The roads around here are pretty bad. [=the roads are in bad condition]

This is a busy road. [=many cars, trucks, etc., use this road]

These country/mountain roads are beautiful.

icy roads

The post office is up/down this road a bit. [=a short distance further on this road]

There's likely to be a lot of traffic on the main/major roads [=the roads most commonly used], so you may want to take back/side roads. [=roads that are less commonly used and that do not go through the main part of a city, town, etc.]